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Seeding requirements for scanning laser velocimetryTo measure the velocity distributions within time dependent turbulent flow fields, a continuously scanning laser velocimeter system is being developed at Sandia National Laboratories Livermore (SNLL). A prototype of this system has produced results which show that spatial and temporal variations in particle seed distribution seriously compromise the overall performance and operation of this device. To alleviate some of these problems, alternate flow seeding concepts are explored. The most promising appear to be those that actively induce laser sparks within the gas flow, the velocity of which may be measured by a Fourier transformed velocimetry system.
Document ID
19860001979
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hackett, C. E. (Sandia National Labs. Livermore, CA, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1985
Publication Information
Publication: NASA. Langley Research Center Wind Tunnel Seeding Systems for Laser Velocimeters
Subject Category
Instrumentation And Photography
Accession Number
86N11446
Funding Number(s)
CONTRACT_GRANT: DE-AC04-76DP-00789
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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